Home / 140,889.32-194,447.16-87,191.64

Finding the Fourth Proportional to 140,889.32, 194,447.16 and 87,191.64

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Solution

The fourth proportional to 140,889.32, 194,447.16 and 87,191.64 is: 120,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,889.32 : 194,447.16 = 87,191.64 : x
  2. Step 2: Convert to fraction form
    140,889.32/194,447.16 = 87,191.64/x
  3. Step 3: Cross multiply
    140,889.32x = 194,447.16 × 87,191.64
  4. Step 4: Simplify right side
    140,889.32x = 16,954,166,773.74
  5. Step 5: Solve for x
    x = 16,954,166,773.74/140,889.32
  6. Step 6: Final answer
    x = 120,336.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.